1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
4  *
5  * This code is based on code copyrighted by Freescale,
6  * Liam Girdwood, Javier Martin and probably others.
7  */
8 
9 #ifndef _IMX_PCM_H
10 #define _IMX_PCM_H
11 
12 #include <linux/dma/imx-dma.h>
13 
14 /*
15  * Do not change this as the FIQ handler depends on this size
16  */
17 #define IMX_SSI_DMABUF_SIZE	(64 * 1024)
18 
19 #define IMX_DEFAULT_DMABUF_SIZE	(64 * 1024)
20 
21 struct imx_pcm_fiq_params {
22 	int irq;
23 	void __iomem *base;
24 
25 	/* Pointer to original ssi driver to setup tx rx sizes */
26 	struct snd_dmaengine_dai_dma_data *dma_params_rx;
27 	struct snd_dmaengine_dai_dma_data *dma_params_tx;
28 };
29 
30 #if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
31 int imx_pcm_dma_init(struct platform_device *pdev);
32 #else
imx_pcm_dma_init(struct platform_device * pdev)33 static inline int imx_pcm_dma_init(struct platform_device *pdev)
34 {
35 	return -ENODEV;
36 }
37 #endif
38 
39 #if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
40 int imx_pcm_fiq_init(struct platform_device *pdev,
41 		struct imx_pcm_fiq_params *params);
42 void imx_pcm_fiq_exit(struct platform_device *pdev);
43 #else
imx_pcm_fiq_init(struct platform_device * pdev,struct imx_pcm_fiq_params * params)44 static inline int imx_pcm_fiq_init(struct platform_device *pdev,
45 		struct imx_pcm_fiq_params *params)
46 {
47 	return -ENODEV;
48 }
49 
imx_pcm_fiq_exit(struct platform_device * pdev)50 static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
51 {
52 }
53 #endif
54 
55 #endif /* _IMX_PCM_H */
56